Heat pad controller



FIG. 1 is a front, top right perspective view of a heat pad controller showing my new design therefor;

FIG. 2 is a bottom, rear left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plain view thereof.

The broken lines show portions of the heat pad controller that form no part of the claimed design. 

CLAIM The ornamental design for a heat pad controller, as shown and described. 